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创建脚本以删除子文件夹中的文件

tag-icon • tag-icon windows powershell batch-file wildcards
创建脚本以删除子文件夹中的文件

下午好，

我需要创建一个脚本来从服务器上所有用户的下载文件夹中删除超过 30 天的文件。

我使用了下面的命令，但没有效果。知道哪里出了问题吗？

Get-ChildItem "\\ server \ folder1 \ User_Data \ * \ Downloads \ *" -Recurse |
    Where-Object {($_.LastWriteTime -lt (Get-Date).AddDays(-30))} |
        Remove-Item -ErrorAction SilentlyContinue

答案1

那么，如果你这样做，会发生什么……？

Get-ChildItem 'D:\Test\Reference\New folder' -Recurse
<#
# Results

    Directory: D:\Test\Reference\New folder


Mode                LastWriteTime         Length Name                                                                                                          
----                -------------         ------ ----                                                                                                          
d-----        06-Mar-20     10:52                New folder (2)                                                                                                
-a----        10-Jan-20     17:59              0 awél.txt                                                                                                      
-a----        04-Jan-20     02:01             39 hello.bat                                                                                                     
-a----        04-Jan-20     01:43             44 hello.ps1                                                                                                     
-a----        04-Jan-20     02:16             64 mytest - Copy.txt                                                                                             
-a----        04-Jan-20     02:16             64 mytest.txt                                                                                                    


    Directory: D:\Test\Reference\New folder\New folder (2)


Mode                LastWriteTime         Length Name                                                                                                          
----                -------------         ------ ----                                                                                                          
-a----        10-Jan-20     17:59              0 awél.txt                                                                                                      
-a----        04-Jan-20     02:01             39 hello.bat                                                                                                     
-a----        04-Jan-20     01:43             44 hello.ps1                                                                                                     
-a----        04-Jan-20     02:16             64 mytest - Copy.txt                                                                                             
-a----        04-Jan-20     02:16             64 mytest.txt   
#>

Get-ChildItem 'D:\Test\Reference\New folder' -Recurse | 
Where-Object {($_.LastWriteTime -lt (Get-Date).AddDays(-1))} | 
Remove-Item -WhatIf

<#
# Results

What if: Performing the operation "Remove File" on target "D:\Test\Reference\New folder\awél.txt".
What if: Performing the operation "Remove File" on target "D:\Test\Reference\New folder\hello.bat".
What if: Performing the operation "Remove File" on target "D:\Test\Reference\New folder\hello.ps1".
What if: Performing the operation "Remove File" on target "D:\Test\Reference\New folder\mytest - Copy.txt".
What if: Performing the operation "Remove File" on target "D:\Test\Reference\New folder\mytest.txt".
What if: Performing the operation "Remove File" on target "D:\Test\Reference\New folder\New folder (2)\awél.txt".
What if: Performing the operation "Remove File" on target "D:\Test\Reference\New folder\New folder (2)\hello.bat".
What if: Performing the operation "Remove File" on target "D:\Test\Reference\New folder\New folder (2)\hello.ps1".
What if: Performing the operation "Remove File" on target "D:\Test\Reference\New folder\New folder (2)\mytest - Copy.txt".
What if: Performing the operation "Remove File" on target "D:\Test\Reference\New folder\New folder (2)\mytest.txt".
#>

Get-ChildItem 'D:\Test\Reference\New folder' -Recurse | 
Where-Object {($_.LastWriteTime -lt (Get-Date).AddDays(-1))} | 
Remove-Item -Confirm:$false -Force
Get-ChildItem 'D:\Test\Reference\New folder' -Recurse
<#
# Results
    Directory: D:\Test\Reference\New folder


Mode                LastWriteTime         Length Name                                                                                                          
----                -------------         ------ ----                                                                                                          
d-----        06-Mar-20     10:51                New folder (2) 
#>

答案2

这样效果会更好：

$Path = "\\server\folder1\User_Data\*\Downloads"
$Daysback = "-30"
$CurrentDate = Get-Date
$DatetoDelete = $CurrentDate.AddDays($Daysback)
Get-ChildItem $Path -Recurse | Where-Object { $_.LastWriteTime -lt $DatetoDelete } | Remove-Item

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